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Cellular Respiration is the process where the chemical energy of "food" molecules are converted into ATP.
Location: Mitochondria
Three Steps
Glycolysis
Breaks glucose (6-Carbon) into two smaller compounds (3-Carbon) and produces 2 ATP
1 Glucose -- 2 pyruvic acid molecules
The KREBS CYCLE!
If oxygen is present (aerobic).. then it goes to the Krebs Cycle
In this cycle, (3-Carbon) compound and Oxygen are converted to CO2, 2 ATP, and lots of high energy electrons
The ELECTRON TRANSPORT CHAIN (ETC)
High energy electrons (from Krebs) are passed through a chain producing LOTS + LOTS + LOTS of ATP (34)
Summary
Aerobic Respiration
Cells must contain GLUCOSE, OXYGEN, and ENZYMES..
to make ATP, CO2, H2O

What if after glycolysis there is NO oxygen?
Anaerobic conditions lead to ... Fermentation
Alcoholic
Lactic Acid
Very little ATP

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Click here to view animation!